title: [Accuracy of COPD questionnaires in the general health check-up setting].
abstract: To evaluate the accuracy of the International Primary Care Airways Group (IPAG)-COPD questionnaire for detection of airflow limitation in the general health check up setting, we conducted a cross-sectional study in 186 subjects who underwent spirometry and filled out COPD questionnaire with a recommended cut-off level of 17 points. The prevalence of airflow limitation defined as FEV1/FVC < 70% was 3.8%. When the subjects were restricted to those 40 years or older, the prevalence was 5.5%. When we used a cut-off level of 17 points to detect airflow limitation, the sensitivity, specificity, positive predictive value (PPV) and positive likelihood ratio (LR+) were 14.3%, 83.2%, 3.2%, and 0.85, respectively. When the cut-off level was changed to 14 points, the sensitivity, specificity, PPV and LR+ were 85.7%, 59.2%, 7.6%, and 2.10, respectively. The questionnaire was useful to find airflow limitations in the general health check-up setting with a cut-off level of 14 points.
authors.affiliation: Master's Program in Clinical Research, School of Public Health, Kyoto University.
authors.forename: Yasuji
authors.initials: Y
authors.lastname: Arimura
authors.forename: Shin
authors.initials: S
authors.lastname: Yamazaki
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Shirahama
authors.forename: Shigeru
authors.initials: S
authors.lastname: Matsukura
authors.forename: Susumu
authors.initials: S
authors.lastname: Chiyotanda
authors.forename: Masamitsu
authors.initials: M
authors.lastname: Nakazato
authors.forename: Shunichi
authors.initials: S
authors.lastname: Fukuhara
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008448:Maximal Expiratory Flow Rate; D008875:Middle Aged; D010808:Physical Examination; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis*; D012129:Respiratory Function Tests / Q000379:methods*; D012680:Sensitivity and Specificity; D013147:Spirometry; D011795:Surveys and Questionnaires; D014797:Vital Capacity